package com.ethanzzh.security.ethanzzhdemo.controller;


import com.ethanzzh.security.ethanzzhdemo.dto.FileInfo;

import org.apache.commons.io.IOUtils;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;

import java.util.Date;

@RestController
@RequestMapping("/file")
public class FileController {

    private String folder = "/Users/zhangzehui/Desktop/ethanzzh.security/ethanzzh.security/ethanzzh-security/ethanzzh-demo/src/main/java/com/ethanzzh/security/ethanzzhdemo/controller";


    @PostMapping
    public FileInfo upload(MultipartFile file) throws Exception {
        System.out.println(file.getName());
        System.out.println(file.getOriginalFilename());
        System.out.println(file.getSize());

        File localFile = new File(folder, new Date().getTime() + ".txt");
        file.transferTo(localFile);

        return new FileInfo(localFile.getAbsolutePath());
    }

    @GetMapping("/{id}")
    public void download(@PathVariable String id, HttpServletRequest request, HttpServletResponse response) {

        try (
                InputStream inputStream = new FileInputStream(new File(folder, id + ".txt"));
                OutputStream outputStream = response.getOutputStream();) {
            response.setContentType("application/x-download");
            response.addHeader("Content-Disposition", "attachment;filename=test.txt");

            IOUtils.copy(inputStream, outputStream);
            outputStream.flush();

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}
